Fix sentences in README (#284)

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md
diff --git a/doc/readme.md b/doc/readme.md
index 50b3332..671282c 100644
--- a/doc/readme.md
+++ b/doc/readme.md
@@ -186,7 +186,7 @@
 
 #### Version control
 
-It is recommended not to check in `platforms/` and `plugins/` directories into version control as they are considered a build artifact. Your platforms and plugins will be saved in config.xml & package.json automatically. These platforms/plugins will be downloaded when on the machine when `cordova prepare` is invoked.
+It is recommended not to check in `platforms/` and `plugins/` directories into version control as they are considered a build artifact. Your platforms and plugins will be saved in config.xml & package.json automatically. These platforms/plugins will be downloaded when `cordova prepare` is invoked.
 
 ### Examples
 
@@ -227,7 +227,7 @@
 | update `platform` [...] |      | Update specified platforms |
 |     | --save                   | Updates the version specified in `config.xml` |
 | list |                         | List all installed and available platforms |
-| check |                        | List platforms which can be updated by `cordova-cli platform update` |
+| check |                        | List platforms which can be updated via cordova-cli with the command `platform update` |
 | save  |                        | Save `<platform-spec>` of all platforms added to config.xml |
 
 ### Platform-spec
@@ -360,7 +360,7 @@
 
 ### Examples
 
-- Add `cordova-plugin-camera` and `cordova-plugin-file` to the project and it be be saved to `config.xml` & `package.json`. Use `../plugins` directory to search for the plugins.
+- Add `cordova-plugin-camera` and `cordova-plugin-file` to the project and save it to `config.xml` & `package.json`. Use `../plugins` directory to search for the plugins.
 
         cordova plugin add cordova-plugin-camera cordova-plugin-file --save --searchpath ../plugins
 
@@ -540,7 +540,7 @@
 
 ### Synopsis
 
-Cleans the build artifacts for the specified platform, or all platforms by running platform-specific build cleanup.
+Cleans the build artifacts for all the platforms, or the specified platform by running platform-specific build cleanup.
 
 ### Syntax